Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate

The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching age...
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Autor*in:	Hui Li [verfasserIn] Wei Xiao [verfasserIn] Jianping Jin [verfasserIn] Yuexin Han [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure

Übergeordnetes Werk:	In: Minerals - MDPI AG, 2012, 11(2021), 6, p 558
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:6, p 558

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/min11060558

Katalog-ID:	DOAJ002895560

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520			\|a The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore.
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allfields_unstemmed	10.3390/min11060558 doi (DE-627)DOAJ002895560 (DE-599)DOAJ518cca40a0ce4da1aeca8ba88a64dc02 DE-627 ger DE-627 rakwb eng QE351-399.2 Hui Li verfasserin aut Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore. carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure Mineralogy Wei Xiao verfasserin aut Jianping Jin verfasserin aut Yuexin Han verfasserin aut In Minerals MDPI AG, 2012 11(2021), 6, p 558 (DE-627)689132069 (DE-600)2655947-X 2075163X nnns volume:11 year:2021 number:6, p 558 https://doi.org/10.3390/min11060558 kostenfrei https://doaj.org/article/518cca40a0ce4da1aeca8ba88a64dc02 kostenfrei https://www.mdpi.com/2075-163X/11/6/558 kostenfrei https://doaj.org/toc/2075-163X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 6, p 558
allfieldsGer	10.3390/min11060558 doi (DE-627)DOAJ002895560 (DE-599)DOAJ518cca40a0ce4da1aeca8ba88a64dc02 DE-627 ger DE-627 rakwb eng QE351-399.2 Hui Li verfasserin aut Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore. carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure Mineralogy Wei Xiao verfasserin aut Jianping Jin verfasserin aut Yuexin Han verfasserin aut In Minerals MDPI AG, 2012 11(2021), 6, p 558 (DE-627)689132069 (DE-600)2655947-X 2075163X nnns volume:11 year:2021 number:6, p 558 https://doi.org/10.3390/min11060558 kostenfrei https://doaj.org/article/518cca40a0ce4da1aeca8ba88a64dc02 kostenfrei https://www.mdpi.com/2075-163X/11/6/558 kostenfrei https://doaj.org/toc/2075-163X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 6, p 558
allfieldsSound	10.3390/min11060558 doi (DE-627)DOAJ002895560 (DE-599)DOAJ518cca40a0ce4da1aeca8ba88a64dc02 DE-627 ger DE-627 rakwb eng QE351-399.2 Hui Li verfasserin aut Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore. carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure Mineralogy Wei Xiao verfasserin aut Jianping Jin verfasserin aut Yuexin Han verfasserin aut In Minerals MDPI AG, 2012 11(2021), 6, p 558 (DE-627)689132069 (DE-600)2655947-X 2075163X nnns volume:11 year:2021 number:6, p 558 https://doi.org/10.3390/min11060558 kostenfrei https://doaj.org/article/518cca40a0ce4da1aeca8ba88a64dc02 kostenfrei https://www.mdpi.com/2075-163X/11/6/558 kostenfrei https://doaj.org/toc/2075-163X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 6, p 558
language	English
source	In Minerals 11(2021), 6, p 558 volume:11 year:2021 number:6, p 558
sourceStr	In Minerals 11(2021), 6, p 558 volume:11 year:2021 number:6, p 558
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topic_facet	carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure Mineralogy
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authorswithroles_txt_mv	Hui Li @@aut@@ Wei Xiao @@aut@@ Jianping Jin @@aut@@ Yuexin Han @@aut@@
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callnumber-first	Q - Science
author	Hui Li
spellingShingle	Hui Li misc QE351-399.2 misc carbonaceous fine-grained gold ores misc oxidation roasting misc aeration rate misc microporous structure misc Mineralogy Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate
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topic_title	QE351-399.2 Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate carbonaceous fine-grained gold ores oxidation roasting aeration rate microporous structure
topic	misc QE351-399.2 misc carbonaceous fine-grained gold ores misc oxidation roasting misc aeration rate misc microporous structure misc Mineralogy
topic_unstemmed	misc QE351-399.2 misc carbonaceous fine-grained gold ores misc oxidation roasting misc aeration rate misc microporous structure misc Mineralogy
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title	Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate
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title_sort	oxidation roasting of fine-grained carbonaceous gold ore: the effect of aeration rate
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title_auth	Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate
abstract	The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore.
abstractGer	The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore.
abstract_unstemmed	The oxidation roasting of carbon-bearing micro-fine gold can eliminate or weaken the robbing effect of carbonaceous materials and clay, and destroy the encapsulation of micro-fine gold. The micropores produced by gas escaping during the roasting process are conducive to the diffusion of leaching agents, thus enhancing the cyanide leaching of gold. In this paper, the influence of the aeration rate during roasting on the leaching rate of fine-grained carbonaceous gold ore and its mechanism were studied using thermodynamic calculations, crystal structure analysis, surface chemical groups and bonds analysis, microporous structure analysis, and surface morphology detection. Under suitable roasting conditions, the carbonaceous and pyrite in the ore are oxidized, while carbonate minerals such as dolomite and calcite as well as clay minerals are decomposed, and the gold-robbing materials lose their activity. The experimental results have theoretical and practical significance for the popularization and application of oxidation roasting technology of fine carbon-bearing gold ore.
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title_short	Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate
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Oxidation Roasting of Fine-Grained Carbonaceous Gold Ore: The Effect of Aeration Rate

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